From f838035d40285b9651868dbd711eb14a5ff92ad2 Mon Sep 17 00:00:00 2001
From: Michael Bien <mbien@fh-landshut.de>
Date: Sun, 28 Feb 2010 01:19:25 +0100
Subject: added three missing workgroup info methods in CLKernel.

---
 src/com/mbien/opencl/CLKernel.java  | 40 +++++++++++++++++++++++++++++++++++++
 src/com/mbien/opencl/CLProgram.java |  2 +-
 2 files changed, 41 insertions(+), 1 deletion(-)

(limited to 'src/com')

diff --git a/src/com/mbien/opencl/CLKernel.java b/src/com/mbien/opencl/CLKernel.java
index 865c7bf5..b661d31c 100644
--- a/src/com/mbien/opencl/CLKernel.java
+++ b/src/com/mbien/opencl/CLKernel.java
@@ -187,6 +187,46 @@ public class CLKernel extends CLObject implements CLResource, Cloneable {
         return buffer.putLong(value).rewind();
     }
 
+    /**
+     * Returns the amount of local memory in bytes being used by a kernel.
+     * This includes local memory that may be needed by an implementation to execute the kernel,
+     * variables declared inside the kernel with the <code>__local</code> address qualifier and local memory
+     * to be allocated for arguments to the kernel declared as pointers with the <code>__local</code> address
+     * qualifier and whose size is specified with clSetKernelArg.
+     * If the local memory size, for any pointer argument to the kernel declared with
+     * the <code>__local</code> address qualifier, is not specified, its size is assumed to be 0.
+     */
+    public long getLocalMemorySize(CLDevice device) {
+        return getWorkGroupInfo(device, CL_KERNEL_LOCAL_MEM_SIZE);
+    }
+
+    /**
+     * Returns the work group size for this kernel on the given device.
+     * This provides a mechanism for the application to query the work-group size
+     * that can be used to execute a kernel on a specific device given by device.
+     * The OpenCL implementation uses the resource requirements of the kernel
+     * (register usage etc.) to determine what this work-group size should be. 
+     */
+    public long getWorkGroupSize(CLDevice device) {
+        return getWorkGroupInfo(device, CL_KERNEL_WORK_GROUP_SIZE);
+    }
+
+    /**
+     * Returns the work-group size specified by the <code>__attribute__((reqd_work_gr oup_size(X, Y, Z)))</code> qualifier in kernel sources.
+     * If the work-group size is not specified using the above attribute qualifier <code>new long[]{(0, 0, 0)}</code> is returned.
+     */
+    public long[] getCompileWorkGroupSize(CLDevice device) {
+        int ret = cl.clGetKernelWorkGroupInfo(ID, device.ID, CL_KERNEL_COMPILE_WORK_GROUP_SIZE, 8*3, buffer, null);
+        checkForError(ret, "error while asking for clGetKernelWorkGroupInfo");
+        return new long[] { buffer.getLong(0), buffer.getLong(1), buffer.getLong(2) };
+    }
+
+    private long getWorkGroupInfo(CLDevice device, int flag) {
+        int ret = cl.clGetKernelWorkGroupInfo(ID, device.ID, flag, 8, buffer, null);
+        checkForError(ret, "error while asking for clGetKernelWorkGroupInfo");
+        return buffer.getLong(0);
+    }
+
     /**
      * Releases all resources of this kernel from its context.
      */
diff --git a/src/com/mbien/opencl/CLProgram.java b/src/com/mbien/opencl/CLProgram.java
index a5d1311c..806383f6 100644
--- a/src/com/mbien/opencl/CLProgram.java
+++ b/src/com/mbien/opencl/CLProgram.java
@@ -506,7 +506,7 @@ public class CLProgram extends CLObject implements CLResource {
     /**
      * Utility method for defining macros as build options (Returns "-D name=value").
      */
-    public static String define(String name, String value) {
+    public static String define(String name, Object value) {
         return "-D "+name+"="+value;
     }
 
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